Machine for making elastic paper



' Feb. l2, 1929., l 1,701,685

w. A. LoRENz MACHINE FOR MAKING ELASTIC PAPER Filed May 28, 1927 5 Sheets-Sheet l Feb. 12,- 1929.

w. A. LORENZl MACHINE FOR MAKING ELASTIC PAPER Filed May 28, 1927 5 sheets-sheet 2 I I @Heimw- Feb. 12, 1929. l 1,701,685 v w. A. LORENZ MACHINE FOR MAKING ELAsTIc PAPER Filed May 28, 1927 5 Sheets-Sheet 3 31a/vanto@ 55 substantially on line 4 4 of Fig. 3;

i Patented Feb. l12,`

erated continuously at a high rate of prochine with improved means tor UNITED ls'ixerns WILLIAM A. LORENZ, OF `W'ESZI! HARTFORD, CNNECTICUT, ASSIGNOR TO THE OTAKA FABRIC COMPAITLUF HARTFORD, CONNECTICUT.

MACHINE FOR t, r

Application lecl May 28,

per pulp.

'lhe aim oi the invention is to provideA a machine of this sort having various features oi' novelty and advantage and by means of which a web oi paper or paper pulp maybe emciently corrugated and transversely crinkled.

,A further object of the invention is to provide an improved machine which may be opduction. q

A still further-object is to provide a mareventing the web from wrapping or win ing about the cylinders or rolls about or between which it passes,fthis means being so arranged that,

in the eventthe paper web should tend to wrap itself about any one ol the cylinders, the

.web would be thrown onto the next succeed ing cylinder.

A still further object oi the invention is to provide improved means for cleaea the cylinders or rolls withoutF interrupting thev operation of the machine.

@ther objects will be in part obvious and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features oi construction, combination of elernents and arrangement of parts which will.l be exemplied in the construction hereinafter set forth, and the scope of the application of which will be indicated in the appended claims. Y f

lin the accompanying drawings, wherein l have shown, for illustrative purposes one embodiment which the present invention may take:

Figure l is a longitudinal sectional view through the machine, thisf view being taken substantially on line l-l of F ig. 6, the driving mechanism shown in Fig. 2 being omitted;

Fig. 2 is a view showing more orless diagraatically the driving mechanism for this view being taken substantially on.l line bill 2-7-2 of Fig.. 6; y

Fig. 3 is a detail view showing, in section, portions of one of the pick-o rolls and its as-` sociated cylinder together with the scraper bar for maintaining the cylinder in clean condition;

lFig. l is an enlarged sectional view taken I NG ELASTIG PAPER. v,

19a?. serial No. 194,981.

l? ig. 5 is a sectional view showing, on an enlarged scale, the paper passing between two of the corrugating4 cylinders or rolls 5` Fig. 6 is an end view of the driving mechanism shown in Fig. 2, and a portion of the corrugating cylinder l0;

Fig. 7 is atop view oi a part of one of the scraper bars;

Fig. 8 is a sectional view of a portion of the periphery of the crinkling cylinder; and

v F ig. 9 is a detail sectional view taken on line 9--9 of F ig. l and shows the means for holding the cylinders away from. each other so as to prevent injury thereto in shipment.

Referring to the drawings .in detail, A designates a web whichis to be operated upon. 'lhis may be a web of pulp taken directly from a paper making machine, or it may be linished paper taken :from a roll, or the paper may be wetted. rlhe wehA may pass over suitable guide rolls, not shown, toI an adjustable 'cylinder l0 which is circumferentially grooved or corrugated, as shown'most clearly in Fig. 6. The web is carried by this cylinder l0 and delivered to a rotating cylinder or drum ll which is preferably mounted in iixed bearings. This drum ll is also circumferentially corrugated, and the ribs thereof eX- tend into the grooves of the cylinder 10 so that, as the web passes between these two cylinders, it is corrugated and caused to adhere to the peripheryo the cylinder 11. 'If desired, the cylinder 1G may be so adjusted as to preliminarily or partially corrugate the paper, and a supplemental corrugatingcylinder l2 may be provided for completing the corrugating operation. rlhis cylinder 12, which may engage the top of the cylinder l1,

has circumferential ribs which extend into der 1l carries the paper to a crinlrling cylinder 13 which rotates in thessame direction as, but at a slower speed than, the cylinder l1 so as to edect the vcrinlrling operation. This cyl-VV inder l 3\is similar in construction and operation to the crinkling cylinder disclosed' in my Patent No. 1,548,788 issued August 4th,

' 1925 for paper` crinkling. The cylinder is circumferentially corrugated so that the ribs thereof match with, and extend into the grooves of, the cylinder ll. The circumfer ential ribs of the crinlrling cylinder are interrupted so as to form series of teeth 14, the forward faces of which are preferably inclined andthe rear faces of which are' radiico ally disposed. The crinkled paper or pulp web is designated by the letter A.

ln the present illustrative disclosure of the invention, the corrugated cylinder or drum 11 is fixed to a shaft 2O journalled in suitable side frames, one of which is shown in the drawings and designated by the numeral 21.

the grooves of the cylinder 11 and, therefore',` the extent of ccrrugation of the web as it passes between these cylinders, may be adjusted by means ot the set screw 26. The crinkling cylinder 13 'is supported in like manner as is the corrugating cylinder 10.

' rl`his cylinder 13 is lined to a shaft 27 journalled in levers 28 pivoted as at 29. Connected to the levers28 arekthe springs 30. These levers may be adjustedl by set screws 31. The supplemental corrugating cylinder 12 is fixed to a shaft 23 journalled in suitably pivoted arms, one of which is shown in the drawings and designated by the numeral 34. These arms are pivoted in suitable brackets 35 fixed to the tcp of the side frames, as shown most clearly in Fig. 1. This bracket is omitted in F ig.- 6. The cylinder 12 may be adjusted with respect to the cylinder 11 by a screw 36. ln order to hold the cylinders out of mesh during shipping and thus prevent injury to these relatively heavy cylinders, each of the levers 23 and v28 is provided with a screw 37 and the frame of the machine is provided with recesses 38 for each screw. Each of these recesses has an offset portion 39, as shown most clearly iny F ig. 9. When the screws 37 `are advanced into the recesses 39, the levers are locked in a position where the cylinders are out of mesh, and in this condition the machine is shipped. When in operation, the screws are backed out so that they clear the inner ends of the portions 38.

The cylinders 10, 11 and 13 are driven through the mechanism shown in Figs. 2 and 6, this mechanism being omitted in Fig. 1.

Supported in a suitable supplemental frame 40 are shafts 41 and 42 provided with pulleys 43 and 44, respectively, about which passes a belt 45. The shaft 41 is provided with a drive pulley 46. On the right hand endof the shaft 41 is a gear 47 meshing with an intermediate gear 48 which meshes with -a gear 49 fixed on the left hand end of the shaft 20 of the fixed cylinder. Fixed to the left hand end of the shaft 22 which carries the cylinder 10 is a gear 50 which meshes with the gear 49. On the right hand end of The distance vthat the ribs of the cylinder 1() extend into memes E the shaft 42 is agear 51 which drives, through change gears 52, a gear 53 nxed to the left hand end of the shaft 27 which carries the crinkling cylinder. bviously, the shafts 41 and 42 may be driven at differential speeds, ,K and the gears 52 may be changed so as to` chine te correct the diculty. lin accordance f with the present invention, "I provide each of the cylinders with what l term, for convenience, a picked-roll, the arrangement being such that, in the event the aper tends to wind about any one ot the cy inders, the

picked roll associated therewith will strip the web from that cylinder and throw it onto the next succeeding cylinder, thus avoiding the necessity of stopping the machine. These pick-o rolls are designated b, the letter B. Each of these rolls is genera lyfsimilar in construction to the crinkling cylinder 13;

that is to say, they are circumiterentially corrugated so as to provide ribs which mesh with the corrugations of the-respective cylinders, and these ribs are interrupted so as to form teeth However, in case of the pickott rolls, the forward or leading face of each tooth is preferably radial, and the rear faces are inclined. The pick-od rolls are driven in the same direction as, but at a consider,- ably greater speed than, the cylinders with which they are associated. The pick-off roll associated with the cylinder 10 is carried byv a shaft 60, the op osite ends of which are supported in suita le brackets nxed on the top of the levers 23, one ot these brackets being shown in the drawings and being desig- "nated by the numeral 61. This shaft 60 has a gear 62 driven from a gear 63 through an intermediate gear 64. rlhe gear 63 is carried by that shaft 22. The pick-off roll associated with the supplemental corrugating cylinder 12 is fixed to a shaft 65.]'ournalled in suitable brackets carried by the arm 34, one

of these brackets, designated by the numeral 66, being shown in the drawings. The shaft 65 carries a gear 67 meshing with an intermediate gear 68 which, in turn, meshes with a gear 69 iixed to the shaft 33. This gear 69 is driven from a gear #70 fixed on the shaft 20. The pick-off roll B associated with the cylinder 13 is fixed to a shaft 71 journalled in suitable brackets fixed to the levers 28, one of these brackets, designated by the numeral ,72, being shown in the drawings. The shaft 71 is driven through a gear 73 xed to the shaft 27, an intermediate gear 74, and agear 75 fixed to a shaft 71. The pick-olf roll associated with the cylinder 11 is fixed to ashaft 76 journalled in brackets carried by the sidel frames, one of these brackets, designated by the numeral 77, being shown in the drawings. The shaft 76 is driven through the gear 70, an intermediate gear 78 and a gear 7 9 fixed to the shaft 76. Obviously, the several pickof rolls may-be mounted for adjustment with respect to their respective cylinders and, to this end, any suitable mechanism may be employed. Also, the speed of the pick-olf rolls may be varied as desired. Y

lt has been found that where a wet web of pulp or paper is passed about rotating `cylinders Aor rolls, lint, fibre and dirt tend to accumulate on the rolls making it necessary to stop the machine in order to clean the, web

carrying members. In order to automatically clean the cylinders (and pick-0H rolls, and thus avoid the waste and nuisance incident description of one of these bars applies to all of them. For instance, the bar G associated with the cylinder 10 is adjustably'xed to the supporting bar 80 carried by and'extending between the bracikets 61. The scrap- 3 er bar may be adjusted by the screws or bolts 81. rl`he forward end of the scraper bar extends between the cylinder 10 and the pick-od roll B and is corrugated on its top and bottom so as to match the circumferential corrulgations of the cylinder and pick-od roll. The forward end of the scraper bar just clears the cylinder and pick-od roll and has a blunt forward face.

rlhe operation of the machine is briey as follows: rlhe paper A passesbeneath the cylinder 10 andfromV this cylinder onto the fixed cylinder 11. rlhe fixed cylinder 11 carries the paper to the crinkling cylinder 13. As this cylinder 13 rotates slower than the cylinder 11, the paper is crinkled as described in my said patent. As the paper passes between the cylinders 10 and 11 and the cylinders 12 and 11, it is corrugated, and these cylinders may be so adjusted that the corrugation of the paper is e'ected in stages, the cylinder 10 corrugating the paper to a given extent, and the cylinder 12 completing the corrugations. 'lhe cylinder 12 also causes the paper to hug or adhere more closely to the periphery of the cylinder 11 which is of advantage during the When the paper is started on the cylinder 10, it may have a tendency to roll itself upon this cylinder, in which event the first pick-olf roll will strip the lead-l ing edge of the paper or web from the cylinder 10 and throw it onto the cylinder 11 Aliso, in the event that the papershould break and tend to wind itself upon the cylinder 10, f

the pick-off' roll would throw the paper back onto the cylinder 11 so that the mahine can be operated continuously without stopping the same to repair breaks in the paper or web.

Similarly, the pick-off rolls associated with ished surface on the cylinders.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that allv matter contained in the above description or shown in the accompanying drawings shall be` interpreted as illustrative` and not in a limiting sense.

lt is also to be understood that the language vused in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statments of the scope of the invention which, as a matter of language, might be said to fall therebetween.

l claim as my invention:

\ 1. ln a machine of the character described, a rotating cylinder withwhich a web is adapted to be engaged, said cylinder being circumferentially grooved, and a high speed roll rotating in the'same'direction as and in close x proximity to said cylinder for preventing the web from winding about the cylinder, said roll having circumferential ribs adapted to extend into the grooves of said cylinder.

2. ln a machine of the character described,

a rotating cylinder adapted to engage a web and having circumferential grooves, and a pick-ofi' roll driven in the same direction as and at a greater speed than 'said cylinder, said pick-od roll `having circumferential rings of teeth adapted to extend into the .a series of corrugated cylindersbetween which a web is adapted to pass, and a pick-olf roll associated with one of said cylinders for preventing the paper from winding? thereabout after it haspassed between the cylinders and ile lil

for throwing the web onto the next succeeding cylinder, said pick-off roll having circumerential rings of teeth adapted to entend into the grooves ot the cylinder with which it is associated, said teeth having abrupt forward faces and Said pick-oitl roll being driven in the same direction as lout at a greater speed than said cylinder. J

5., in a machine et the character described, series of circumferentially corrugated cylinders between which a weh is adapted to pass, and a picked roll associated with each of said cylinders for preventing the Web from Winding ahont the respective cylinders, each ot said piclnofr' rolls having annular rings of teeth adapted to extend into the grooves of the respective cylinders.

d.. lin a machine o the character described,

morsen a pair of corrugated cylindrical members, the ribs of one member matchingwith the grooves of the other, and a scraper bar extending into the throat .between said members, the opposite faces of said scraper har being corrugated W'llLLlAM A. LQRENZ. 

